CVE-2020-7957
published 2020-02-12CVE-2020-7957: The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a…
PriorityP425medium5.3CVSS 3.1
AVNACLPRNUINSUCNINAL
EPSS
1.88%
77.1th percentile
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
Affected
20 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | dovecot | — | — |
| dovecot | dovecot | >= 0 < 2.3.10.1-r0 | 2.3.10.1-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.9.3-r0 | 2.3.9.3-r0 |
| dovecot | dovecot | >= 0 < 2.3.10.1-r0 | 2.3.10.1-r0 |
| dovecot | dovecot | >= 0 < 2.3.10.1-r0 | 2.3.10.1-r0 |
| dovecot | dovecot | >= 2.3.9 < 2.3.9.3 | 2.3.9.3 |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
CVSS provenance
nvdv3.15.3MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
nvdv3.03.1LOWCVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
osv5.3MEDIUM
vendor_debian5.3LOW
vendor_redhat5.3MEDIUM
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Red Hat
dovecot: specially crafted email can cause mailbox to have permanently unaccessible mail
vendor_redhat·2020-02-12·CVSS 5.3
CVE-2020-7957 [MEDIUM] CWE-20 dovecot: specially crafted email can cause mailbox to have permanently unaccessible mail
dovecot: specially crafted email can cause mailbox to have permanently unaccessible mail
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
Package: dovecot (Red Hat Enterprise Linux 5) - Not affected
Package: dovecot (Red Hat Enterprise Linux 6) - Not affected
Package: dovecot (Red Hat Enterprise Linux 7) - Not affected
Package: dovecot (Red Hat Enterprise Linux 8) - Not affected
Debian
CVE-2020-7957: dovecot - The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet g...
vendor_debian·2020·CVSS 5.3
CVE-2020-7957 [MEDIUM] CVE-2020-7957: dovecot - The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet g...
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
GHSA
GHSA-vg8f-j3m8-7g9v: The IMAP and LMTP components in Dovecot 2
ghsa_unreviewed·2022-05-24
CVE-2020-7957 [MEDIUM] CWE-20 GHSA-vg8f-j3m8-7g9v: The IMAP and LMTP components in Dovecot 2
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
OSV
CVE-2020-7957: The IMAP and LMTP components in Dovecot 2
osv·2020-02-12·CVSS 5.3
CVE-2020-7957 [MEDIUM] CVE-2020-7957: The IMAP and LMTP components in Dovecot 2
The IMAP and LMTP components in Dovecot 2.3.9 before 2.3.9.3 mishandle snippet generation when many characters must be read to compute the snippet and a trailing > character exists. This causes a denial of service in which the recipient cannot read all of their messages.
No detection rules found.
No public exploits indexed.
http://www.openwall.com/lists/oss-security/2020/02/12/2https://dovecot.org/pipermail/dovecot-news/2020-February/000430.htmlhttps://dovecot.org/securityhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/http://www.openwall.com/lists/oss-security/2020/02/12/2https://dovecot.org/pipermail/dovecot-news/2020-February/000430.htmlhttps://dovecot.org/securityhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6XYT55WH372BJOXCJRKBDIFGBMPVOIDT/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/NJXHOUT3FH2DJNMACSX4GHPP4MUV4UKA/
2020-02-12
Published